Incorrect calculations, Can't found the cause.

Development Programming & Scripting Blueprint
1

I’ve start studing BP yesterday. I already did some tutorials but none of them can help me with it. I’m trying to subdivide a line (a trunk in this case) to few pieces with a random size. This code have two inputs: Subdivision ( which is an integer - number of subdivisions) and Length ( length of the line). I implemented this code in JS to check how it’s works and have an actual code at front of me, but when I did it in BP I’ve get a wrong results. Could you explain to me where I’ve get a mistake? Thanks everybody for any help.

HERE IS MY BP:

BP_SubdTrk.png
BP_SubdTrk.png3842×1080 422 KB

HERE IS THE CODE WHICH I TRY TO IMPLEMENT:



var height = 100,
    subd = 5,
    divArr = ];

for(i = 0; i < subd; i++) {
  if(i < subd-1) {
    var div = height / (subd - i),
        divMax = div + div * 0.5,
        divMin = div *  0.5,
        randDiv = Math.random() * (divMax - divMin) + divMin;
    divArr* = randDiv;
    height -= randDiv;
  } else {
    divArr* = height;
  }
}

// show result of random length
console.log(divArr)

var  a = 0;
for(i = 0; i < divArr.length; i++) {
  a+=divArr*;
}
// check that numbers in array in total have the same result as it was declared in the begin
console.log(a)

HERE IS THE LINK TO JS CODE (same as above just with result in console):
http://jsbin.com/xakeliqedi/edit?js,console

2

Here I fix a little bug, there I forgot to decrease divider by 1 for each iteration of the loop. ( ex.: 5,4,3,2,1 )

BP_SubdTrk_bf_1.png
BP_SubdTrk_bf_1.png3839×1080 445 KB

But result still incorrect:

As you can see LinSudbResult not equal Length :(, !@#$%

3

Fix a problem.

4

Try subdivisons - 2
It’s i < subd - 1, not i <= subd-1

5

I’m curious, did it work?